The trial version includes cut-down information of the Basics of Radio Engineering, Radio Amateur Workshop, Radio Engineering Course, Soldering and Installation, Measurements and Equipment, a little LabVIEW For Radio Engineer, Acoustic Systems, Structures And Circuits, Repair to the Radio Master, Radio Amateur Handbook, Supplement Applications; and designs of various self-assembled voltage stabilizers, such as: Economy Class LF Amplifier, Audio Complex Amplifier, Transistor Tester, AM Transmitter at 3 MHz and much more; We remind you that this is only a free trial
version.